20113+3550 HJ 1489 AD

 
 
20h 11m 19.16s +35 49' 49.0" P.A. 51.00 sep 17.1 mag 9.69,9.88 Sp B2III-IV
 
 
Coord 2000 20113+3550 Discov num HJ 1489 Comp AD Coord arcsec 2000 20 11 19.16 +35 49 49.0
Date first 1828 Date last 2018 Obs 21
Pa first 56 Pa last 50.9 P.A. Now (θ) 50.9°
Sep first 13.0 Sep last 17.128 Sep. Now (ρ) 17.128"
Mag pri 9.69 Mag sec 9.88 delta mag (ΔM) 0.19 Spectral class B2III-IV (blue-white)
Pri motion ra -005 Sec motion ra -003
Pri motion dec -008 Sec motion dec -007
Notes N (See Notes)
rPM=0.237 (< 0.3, Physical double)
This double is physical.
 
 
20113+3550 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 11 19 +35 49 49 BU 430 AB 2016 19 23 1.2 9.69 10.37 0.68
Show 20 11 19 +35 49 49 BU 430 AC 2015 5 173 7.2 9.69 14.20 4.51
Show 20 11 19 +35 49 49 HJ 1489 AD 2018 21 51 17.1 9.69 9.88 0.19 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2683-03018-1 Gaia DR2 2058948227281717888